156100551131 has 4 divisors (see below), whose sum is σ = 178400629872. Its totient is φ = 133800472392.

The previous prime is 156100551121. The next prime is 156100551133. The reversal of 156100551131 is 131155001651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131155001651 = 155473 ⋅843587.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156100551131 is a prime.

It is a super-2 number, since 2×156100551131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156100551094 and 156100551103.

It is not an unprimeable number, because it can be changed into a prime (156100551133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11150039360 + ... + 11150039373.

It is an arithmetic number, because the mean of its divisors is an integer number (44600157468).

Almost surely, 2^156100551131 is an apocalyptic number.

156100551131 is a deficient number, since it is larger than the sum of its proper divisors (22300078741).

156100551131 is an equidigital number, since it uses as much as digits as its factorization.

156100551131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22300078740.

The product of its (nonzero) digits is 2250, while the sum is 29.

Adding to 156100551131 its reverse (131155001651), we get a palindrome (287255552782).

The spelling of 156100551131 in words is "one hundred fifty-six billion, one hundred million, five hundred fifty-one thousand, one hundred thirty-one".