152561047 has 4 divisors (see below), whose sum is σ = 159194160. Its totient is φ = 145927936.

The previous prime is 152561023. The next prime is 152561069. The reversal of 152561047 is 740165251.

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 152561047 - 2²⁷ = 18343319 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 (152561147) 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, 3316522 + ... + 3316567.

It is an arithmetic number, because the mean of its divisors is an integer number (39798540).

Almost surely, 2^152561047 is an apocalyptic number.

152561047 is a deficient number, since it is larger than the sum of its proper divisors (6633113).

152561047 is an equidigital number, since it uses as much as digits as its factorization.

152561047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633112.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 152561047 is about 12351.5605086969. The cubic root of 152561047 is about 534.3361457654.

The spelling of 152561047 in words is "one hundred fifty-two million, five hundred sixty-one thousand, forty-seven".