1053400545 has 40 divisors (see below), whose sum is σ = 1939381224. Its totient is φ = 546621696.

The previous prime is 1053400531. The next prime is 1053400583. The reversal of 1053400545 is 5450043501.

It can be written as a sum of positive squares in 4 ways, for example, as 415181376 + 638219169 = 20376^2 + 25263^2 .

It is not a de Polignac number, because 1053400545 - 2⁸ = 1053400289 is a prime.

It is a super-2 number, since 2×1053400545² = 2219305416412594050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20164 + ... + 50133.

Almost surely, 2^1053400545 is an apocalyptic number.

1053400545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1053400545 is a deficient number, since it is larger than the sum of its proper divisors (885980679).

1053400545 is an equidigital number, since it uses as much as digits as its factorization.

1053400545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70351 (or 70342 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1053400545 is about 32456.1326254377. The cubic root of 1053400545 is about 1017.4924130177.

The spelling of 1053400545 in words is "one billion, fifty-three million, four hundred thousand, five hundred forty-five".