152267021 has 4 divisors (see below), whose sum is σ = 152292444. Its totient is φ = 152241600.

The previous prime is 152266993. The next prime is 152267029. The reversal of 152267021 is 120762251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31024900 + 121242121 = 5570^2 + 11011^2 .

It is a cyclic number.

It is not a de Polignac number, because 152267021 - 2¹⁸ = 152004877 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 (152267029) 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, 1781 + ... + 17541.

It is an arithmetic number, because the mean of its divisors is an integer number (38073111).

Almost surely, 2^152267021 is an apocalyptic number.

It is an amenable number.

152267021 is a deficient number, since it is larger than the sum of its proper divisors (25423).

152267021 is an equidigital number, since it uses as much as digits as its factorization.

152267021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25422.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 152267021 is about 12339.6523857036. The cubic root of 152267021 is about 533.9926553811.

The spelling of 152267021 in words is "one hundred fifty-two million, two hundred sixty-seven thousand, twenty-one".