70561149 has 16 divisors (see below), whose sum is σ = 95852160. Its totient is φ = 46161920.

The previous prime is 70561129. The next prime is 70561157. The reversal of 70561149 is 94116507.

It is a cyclic number.

It is not a de Polignac number, because 70561149 - 2¹³ = 70552957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70561129) 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, 54097 + ... + 55385.

It is an arithmetic number, because the mean of its divisors is an integer number (5990760).

Almost surely, 2^70561149 is an apocalyptic number.

It is an amenable number.

70561149 is a deficient number, since it is larger than the sum of its proper divisors (25291011).

70561149 is a wasteful number, since it uses less digits than its factorization.

70561149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 70561149 is about 8400.0683925787. The cubic root of 70561149 is about 413.2268646315.

The spelling of 70561149 in words is "seventy million, five hundred sixty-one thousand, one hundred forty-nine".