70406149 has 6 divisors (see below), whose sum is σ = 77388710. Its totient is φ = 64005480.

The previous prime is 70406137. The next prime is 70406173. The reversal of 70406149 is 94160407.

It can be written as a sum of positive squares in only one way, i.e., 70257924 + 148225 = 8382^2 + 385^2 .

It is a de Polignac number, because none of the positive numbers 2^k-70406149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70406149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70404149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 290814 + ... + 291055.

Almost surely, 2^70406149 is an apocalyptic number.

It is an amenable number.

70406149 is a deficient number, since it is larger than the sum of its proper divisors (6982561).

70406149 is a wasteful number, since it uses less digits than its factorization.

70406149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581891 (or 581880 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70406149 is about 8390.8372049516. The cubic root of 70406149 is about 412.9240675947.

The spelling of 70406149 in words is "seventy million, four hundred six thousand, one hundred forty-nine".