151032131 has 4 divisors (see below), whose sum is σ = 159916392. Its totient is φ = 142147872.

The previous prime is 151032107. The next prime is 151032143. The reversal of 151032131 is 131230151.

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 151032131 - 2¹⁸ = 150769987 is a prime.

It is a super-2 number, since 2×151032131² = 45621409188802322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 8884243 = 151032131 / (1 + 5 + 1 + 0 + 3 + 2 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151032731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4442105 + ... + 4442138.

It is an arithmetic number, because the mean of its divisors is an integer number (39979098).

Almost surely, 2^151032131 is an apocalyptic number.

151032131 is a deficient number, since it is larger than the sum of its proper divisors (8884261).

151032131 is an equidigital number, since it uses as much as digits as its factorization.

151032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884260.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 151032131 is about 12289.5130497510. The cubic root of 151032131 is about 532.5451698919.

Adding to 151032131 its reverse (131230151), we get a palindrome (282262282).

The spelling of 151032131 in words is "one hundred fifty-one million, thirty-two thousand, one hundred thirty-one".