10145512240 has 20 divisors (see below), whose sum is σ = 23588316144. Its totient is φ = 4058204864.

The previous prime is 10145512231. The next prime is 10145512241. The reversal of 10145512240 is 4221554101.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10145512240² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10145512241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63409372 + ... + 63409531.

Almost surely, 2^10145512240 is an apocalyptic number.

10145512240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10145512240 is an abundant number, since it is smaller than the sum of its proper divisors (13442803904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10145512240 is a wasteful number, since it uses less digits than its factorization.

10145512240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126818916 (or 126818910 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 10145512240 in words is "ten billion, one hundred forty-five million, five hundred twelve thousand, two hundred forty".