151211131 has 8 divisors (see below), whose sum is σ = 160373664. Its totient is φ = 142264320.

The previous prime is 151211117. The next prime is 151211189. The reversal of 151211131 is 131112151.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151211131 - 2⁷ = 151211003 is a prime.

It is a super-2 number, since 2×151211131² = 45729612276598322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151211111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52486 + ... + 55291.

It is an arithmetic number, because the mean of its divisors is an integer number (20046708).

Almost surely, 2^151211131 is an apocalyptic number.

151211131 is a deficient number, since it is larger than the sum of its proper divisors (9162533).

151211131 is a wasteful number, since it uses less digits than its factorization.

151211131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107861.

The product of its digits is 30, while the sum is 16.

The square root of 151211131 is about 12296.7935251430. The cubic root of 151211131 is about 532.7554738193.

Adding to 151211131 its reverse (131112151), we get a palindrome (282323282).

The spelling of 151211131 in words is "one hundred fifty-one million, two hundred eleven thousand, one hundred thirty-one".