1225154478057 has 32 divisors (see below), whose sum is σ = 1672476263424. Its totient is φ = 797591064000.

The previous prime is 1225154478043. The next prime is 1225154478071. The reversal of 1225154478057 is 7508744515221.

It is an interprime number because it is at equal distance from previous prime (1225154478043) and next prime (1225154478071).

It is not a de Polignac number, because 1225154478057 - 2¹⁵ = 1225154445289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225154478077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7276332 + ... + 7442802.

It is an arithmetic number, because the mean of its divisors is an integer number (52264883232).

Almost surely, 2^{1225154478057} is an apocalyptic number.

It is an amenable number.

1225154478057 is a deficient number, since it is larger than the sum of its proper divisors (447321785367).

1225154478057 is a wasteful number, since it uses less digits than its factorization.

1225154478057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166909.

The product of its (nonzero) digits is 3136000, while the sum is 51.

The spelling of 1225154478057 in words is "one trillion, two hundred twenty-five billion, one hundred fifty-four million, four hundred seventy-eight thousand, fifty-seven".