1253417739 has 16 divisors (see below), whose sum is σ = 1911624960. Its totient is φ = 715618080.

The previous prime is 1253417731. The next prime is 1253417743. The reversal of 1253417739 is 9377143521.

It is not a de Polignac number, because 1253417739 - 2³ = 1253417731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253417739.

It is not an unprimeable number, because it can be changed into a prime (1253417731) 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, 469 + ... + 50070.

It is an arithmetic number, because the mean of its divisors is an integer number (119476560).

Almost surely, 2^1253417739 is an apocalyptic number.

1253417739 is a deficient number, since it is larger than the sum of its proper divisors (658207221).

1253417739 is a wasteful number, since it uses less digits than its factorization.

1253417739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51730.

The product of its digits is 158760, while the sum is 42.

The square root of 1253417739 is about 35403.6401941947. The cubic root of 1253417739 is about 1078.1982243163.

The spelling of 1253417739 in words is "one billion, two hundred fifty-three million, four hundred seventeen thousand, seven hundred thirty-nine".