1265897202 has 16 divisors (see below), whose sum is σ = 2540937792. Its totient is φ = 420441840.

The previous prime is 1265897131. The next prime is 1265897203. The reversal of 1265897202 is 2027985621.

It is not an unprimeable number, because it can be changed into a prime (1265897203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379174 + ... + 382497.

It is an arithmetic number, because the mean of its divisors is an integer number (158808612).

Almost surely, 2^1265897202 is an apocalyptic number.

1265897202 is an abundant number, since it is smaller than the sum of its proper divisors (1275040590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265897202 is a wasteful number, since it uses less digits than its factorization.

1265897202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761953.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1265897202 is about 35579.4491525656. The cubic root of 1265897202 is about 1081.7647194740.

The spelling of 1265897202 in words is "one billion, two hundred sixty-five million, eight hundred ninety-seven thousand, two hundred two".