70140545 has 32 divisors (see below), whose sum is σ = 89994240. Its totient is φ = 52416000.

The previous prime is 70140541. The next prime is 70140559. The reversal of 70140545 is 54504107.

It is not a de Polignac number, because 70140545 - 2² = 70140541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70140541) 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, 887816 + ... + 887894.

It is an arithmetic number, because the mean of its divisors is an integer number (2812320).

Almost surely, 2^70140545 is an apocalyptic number.

It is an amenable number.

70140545 is a deficient number, since it is larger than the sum of its proper divisors (19853695).

70140545 is a wasteful number, since it uses less digits than its factorization.

70140545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 70140545 is about 8374.9952238792. The cubic root of 70140545 is about 412.4041675144.

The spelling of 70140545 in words is "seventy million, one hundred forty thousand, five hundred forty-five".