151752021 has 8 divisors (see below), whose sum is σ = 202975584. Its totient is φ = 100848240.

The previous prime is 151752017. The next prime is 151752061. The reversal of 151752021 is 120257151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151752021 - 2² = 151752017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151751982 and 151752000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151752061) 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 7 ways as a sum of consecutive naturals, for example, 78835 + ... + 80736.

It is an arithmetic number, because the mean of its divisors is an integer number (25371948).

Almost surely, 2^151752021 is an apocalyptic number.

It is an amenable number.

151752021 is a deficient number, since it is larger than the sum of its proper divisors (51223563).

151752021 is a wasteful number, since it uses less digits than its factorization.

151752021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159891.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 151752021 is about 12318.7670243414. The cubic root of 151752021 is about 533.3899491547.

The spelling of 151752021 in words is "one hundred fifty-one million, seven hundred fifty-two thousand, twenty-one".