151388789 has 4 divisors (see below), whose sum is σ = 159356640. Its totient is φ = 143420940.

The previous prime is 151388777. The next prime is 151388807. The reversal of 151388789 is 987883151.

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 a de Polignac number, because none of the positive numbers 2^k-151388789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151388759) 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, 3983897 + ... + 3983934.

It is an arithmetic number, because the mean of its divisors is an integer number (39839160).

Almost surely, 2^151388789 is an apocalyptic number.

151388789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

151388789 is a deficient number, since it is larger than the sum of its proper divisors (7967851).

151388789 is an equidigital number, since it uses as much as digits as its factorization.

151388789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7967850.

The product of its digits is 483840, while the sum is 50.

The square root of 151388789 is about 12304.0151576630. The cubic root of 151388789 is about 532.9640370119.

The spelling of 151388789 in words is "one hundred fifty-one million, three hundred eighty-eight thousand, seven hundred eighty-nine".