40147497 has 12 divisors (see below), whose sum is σ = 62451844. Its totient is φ = 24706080.

The previous prime is 40147493. The next prime is 40147501. The reversal of 40147497 is 79474104.

It is an interprime number because it is at equal distance from previous prime (40147493) and next prime (40147501).

It can be written as a sum of positive squares in 2 ways, for example, as 6170256 + 33977241 = 2484^2 + 5829^2 .

It is not a de Polignac number, because 40147497 - 2² = 40147493 is a prime.

It is a super-2 number, since 2×40147497² = 3223643030730018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40147493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171454 + ... + 171687.

Almost surely, 2^40147497 is an apocalyptic number.

It is an amenable number.

40147497 is a deficient number, since it is larger than the sum of its proper divisors (22304347).

40147497 is a wasteful number, since it uses less digits than its factorization.

40147497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343160 (or 343157 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 40147497 is about 6336.2052523573. The cubic root of 40147497 is about 342.4150342456.

It can be divided in two parts, 4014 and 7497, that added together give a palindrome (11511).

The spelling of 40147497 in words is "forty million, one hundred forty-seven thousand, four hundred ninety-seven".