2045154140 has 24 divisors (see below), whose sum is σ = 4343083920. Its totient is φ = 808869248.

The previous prime is 2045154107. The next prime is 2045154173. The reversal of 2045154140 is 414515402.

It is an interprime number because it is at equal distance from previous prime (2045154107) and next prime (2045154173).

It is a super-3 number, since 3×2045154140³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572702 + ... + 576261.

It is an arithmetic number, because the mean of its divisors is an integer number (180961830).

Almost surely, 2^2045154140 is an apocalyptic number.

2045154140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045154140 is an abundant number, since it is smaller than the sum of its proper divisors (2297929780).

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

2045154140 is a wasteful number, since it uses less digits than its factorization.

2045154140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149061 (or 1149059 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2045154140 is about 45223.3804574581. The cubic root of 2045154140 is about 1269.3323500042.

Adding to 2045154140 its reverse (414515402), we get a palindrome (2459669542).

The spelling of 2045154140 in words is "two billion, forty-five million, one hundred fifty-four thousand, one hundred forty".