151609139 has 16 divisors (see below), whose sum is σ = 167637600. Its totient is φ = 135970560.

The previous prime is 151609121. The next prime is 151609163. The reversal of 151609139 is 931906151.

151609139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-151609139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151609099 and 151609108.

It is not an unprimeable number, because it can be changed into a prime (151609109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381689 + ... + 382085.

It is an arithmetic number, because the mean of its divisors is an integer number (10477350).

Almost surely, 2^151609139 is an apocalyptic number.

151609139 is a deficient number, since it is larger than the sum of its proper divisors (16028461).

151609139 is a wasteful number, since it uses less digits than its factorization.

151609139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 151609139 is about 12312.9662957388. The cubic root of 151609139 is about 533.2224922870. Note that the first 3 decimals are identical.

The spelling of 151609139 in words is "one hundred fifty-one million, six hundred nine thousand, one hundred thirty-nine".