151351989 has 4 divisors (see below), whose sum is σ = 201802656. Its totient is φ = 100901324.

The previous prime is 151351987. The next prime is 151351999. The reversal of 151351989 is 989153151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151351989 - 2¹ = 151351987 is a prime.

It is a super-2 number, since 2×151351989² = 45814849148512242, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 151351989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151351987) 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 3 ways as a sum of consecutive naturals, for example, 25225329 + ... + 25225334.

It is an arithmetic number, because the mean of its divisors is an integer number (50450664).

Almost surely, 2^151351989 is an apocalyptic number.

It is an amenable number.

151351989 is a deficient number, since it is larger than the sum of its proper divisors (50450667).

151351989 is an equidigital number, since it uses as much as digits as its factorization.

151351989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50450666.

The product of its digits is 48600, while the sum is 42.

The square root of 151351989 is about 12302.5196199803. The cubic root of 151351989 is about 532.9208487280.

The spelling of 151351989 in words is "one hundred fifty-one million, three hundred fifty-one thousand, nine hundred eighty-nine".