151028639 has 4 divisors (see below), whose sum is σ = 152725680. Its totient is φ = 149331600.

The previous prime is 151028623. The next prime is 151028651. The reversal of 151028639 is 936820151.

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 151028639 - 2⁴ = 151028623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151028599 and 151028608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151028659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848387 + ... + 848564.

It is an arithmetic number, because the mean of its divisors is an integer number (38181420).

Almost surely, 2^151028639 is an apocalyptic number.

151028639 is a deficient number, since it is larger than the sum of its proper divisors (1697041).

151028639 is an equidigital number, since it uses as much as digits as its factorization.

151028639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697040.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 151028639 is about 12289.3709765797. The cubic root of 151028639 is about 532.5410655510.

The spelling of 151028639 in words is "one hundred fifty-one million, twenty-eight thousand, six hundred thirty-nine".