1252774061 has 16 divisors (see below), whose sum is σ = 1563539328. Its totient is φ = 975163200.

The previous prime is 1252774043. The next prime is 1252774093. The reversal of 1252774061 is 1604772521.

It is not a de Polignac number, because 1252774061 - 2²² = 1248579757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252774031) 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, 69971 + ... + 86031.

It is an arithmetic number, because the mean of its divisors is an integer number (97721208).

Almost surely, 2^1252774061 is an apocalyptic number.

1252774061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1252774061 is a deficient number, since it is larger than the sum of its proper divisors (310765267).

1252774061 is a wasteful number, since it uses less digits than its factorization.

1252774061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17092.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1252774061 is about 35394.5484644175. The cubic root of 1252774061 is about 1078.0136273567.

The spelling of 1252774061 in words is "one billion, two hundred fifty-two million, seven hundred seventy-four thousand, sixty-one".