1255147249401 has 32 divisors (see below), whose sum is σ = 1892460205440. Its totient is φ = 822013920000.

The previous prime is 1255147249381. The next prime is 1255147249417. The reversal of 1255147249401 is 1049427415521.

It is a happy number.

1255147249401 is a `hidden beast` number, since 1 + 2 + 551 + 4 + 7 + 2 + 4 + 94 + 0 + 1 = 666.

It is not a de Polignac number, because 1255147249401 - 2⁶ = 1255147249337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255147249441) 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, 773820 + ... + 1763261.

It is an arithmetic number, because the mean of its divisors is an integer number (59139381420).

Almost surely, 2^{1255147249401} is an apocalyptic number.

It is an amenable number.

1255147249401 is a deficient number, since it is larger than the sum of its proper divisors (637312956039).

1255147249401 is a wasteful number, since it uses less digits than its factorization.

1255147249401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537414 (or 2537408 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 1255147249401 in words is "one trillion, two hundred fifty-five billion, one hundred forty-seven million, two hundred forty-nine thousand, four hundred one".