291412053 has 16 divisors (see below), whose sum is σ = 433920960. Its totient is φ = 193285008.

The previous prime is 291412003. The next prime is 291412057. The reversal of 291412053 is 350214192.

It is not a de Polignac number, because 291412053 - 2¹² = 291407957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291412057) 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, 22075 + ... + 32712.

It is an arithmetic number, because the mean of its divisors is an integer number (27120060).

Almost surely, 2^291412053 is an apocalyptic number.

It is an amenable number.

291412053 is a deficient number, since it is larger than the sum of its proper divisors (142508907).

291412053 is a wasteful number, since it uses less digits than its factorization.

291412053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54993 (or 54987 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 291412053 is about 17070.7953241787. The cubic root of 291412053 is about 662.9831694505.

The spelling of 291412053 in words is "two hundred ninety-one million, four hundred twelve thousand, fifty-three".