1270155672 has 48 divisors (see below), whose sum is σ = 3520013640. Its totient is φ = 413538048.

The previous prime is 1270155671. The next prime is 1270155673. The reversal of 1270155672 is 2765510721.

1270155672 is a `hidden beast` number, since 12 + 70 + 15 + 567 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1270155671) and next prime (1270155673).

It is a super-2 number, since 2×1270155672² = 3226590862227543168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270155671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202033 + ... + 208224.

Almost surely, 2^1270155672 is an apocalyptic number.

1270155672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1270155672 is an abundant number, since it is smaller than the sum of its proper divisors (2249857968).

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

1270155672 is a wasteful number, since it uses less digits than its factorization.

1270155672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410312 (or 410305 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 1270155672 is about 35639.2434263131. The cubic root of 1270155672 is about 1082.9763783237.

The spelling of 1270155672 in words is "one billion, two hundred seventy million, one hundred fifty-five thousand, six hundred seventy-two".