1045640137 has 8 divisors (see below), whose sum is σ = 1079927552. Its totient is φ = 1011387600.

The previous prime is 1045640117. The next prime is 1045640143. The reversal of 1045640137 is 7310465401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1045640137 - 2¹⁵ = 1045607369 is a prime.

It is a super-2 number, since 2×1045640137² = 2186726592210757538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045640099 and 1045640108.

It is not an unprimeable number, because it can be changed into a prime (1045640107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61258 + ... + 76444.

It is an arithmetic number, because the mean of its divisors is an integer number (134990944).

Almost surely, 2^1045640137 is an apocalyptic number.

It is an amenable number.

1045640137 is a deficient number, since it is larger than the sum of its proper divisors (34287415).

1045640137 is a wasteful number, since it uses less digits than its factorization.

1045640137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17439.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1045640137 is about 32336.3593652718. The cubic root of 1045640137 is about 1014.9876277945.

The spelling of 1045640137 in words is "one billion, forty-five million, six hundred forty thousand, one hundred thirty-seven".