155742553131 has 16 divisors (see below), whose sum is σ = 227376771840. Its totient is φ = 94038530720.

The previous prime is 155742553111. The next prime is 155742553133. The reversal of 155742553131 is 131355247551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155742553131 - 2⁷ = 155742553003 is a prime.

It is a super-2 number, since 2×155742553131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155742553133) 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 15 ways as a sum of consecutive naturals, for example, 8763375 + ... + 8781128.

It is an arithmetic number, because the mean of its divisors is an integer number (14211048240).

Almost surely, 2^155742553131 is an apocalyptic number.

155742553131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155742553131 is a deficient number, since it is larger than the sum of its proper divisors (71634218709).

155742553131 is a wasteful number, since it uses less digits than its factorization.

155742553131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17544786.

The product of its digits is 315000, while the sum is 42.

The spelling of 155742553131 in words is "one hundred fifty-five billion, seven hundred forty-two million, five hundred fifty-three thousand, one hundred thirty-one".