157148131 has 4 divisors (see below), whose sum is σ = 179597872. Its totient is φ = 134698392.

The previous prime is 157148059. The next prime is 157148141. The reversal of 157148131 is 131841751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157148131 - 2⁷ = 157148003 is a prime.

It is a super-2 number, since 2×157148131² = 49391070153586322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157148093 and 157148102.

It is not an unprimeable number, because it can be changed into a prime (157148141) 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, 11224860 + ... + 11224873.

It is an arithmetic number, because the mean of its divisors is an integer number (44899468).

Almost surely, 2^157148131 is an apocalyptic number.

157148131 is a deficient number, since it is larger than the sum of its proper divisors (22449741).

157148131 is an equidigital number, since it uses as much as digits as its factorization.

157148131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22449740.

The product of its digits is 3360, while the sum is 31.

The square root of 157148131 is about 12535.8737629253. The cubic root of 157148131 is about 539.6386826198.

Adding to 157148131 its reverse (131841751), we get a palindrome (288989882).

The spelling of 157148131 in words is "one hundred fifty-seven million, one hundred forty-eight thousand, one hundred thirty-one".