245262261 has 32 divisors (see below), whose sum is σ = 341332992. Its totient is φ = 156574080.

The previous prime is 245262257. The next prime is 245262263. The reversal of 245262261 is 162262542.

It is a happy number.

It is not a de Polignac number, because 245262261 - 2² = 245262257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245262263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1872166 + ... + 1872296.

It is an arithmetic number, because the mean of its divisors is an integer number (10666656).

Almost surely, 2^245262261 is an apocalyptic number.

It is an amenable number.

245262261 is a deficient number, since it is larger than the sum of its proper divisors (96070731).

245262261 is a wasteful number, since it uses less digits than its factorization.

245262261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its digits is 11520, while the sum is 30.

The square root of 245262261 is about 15660.8512220760. The cubic root of 245262261 is about 625.9556673617.

The spelling of 245262261 in words is "two hundred forty-five million, two hundred sixty-two thousand, two hundred sixty-one".