1203145240 has 32 divisors (see below), whose sum is σ = 2953175760. Its totient is φ = 437507200.

The previous prime is 1203145211. The next prime is 1203145261. The reversal of 1203145240 is 425413021.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 1366771 + ... + 1367650.

Almost surely, 2^1203145240 is an apocalyptic number.

1203145240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203145240 is an abundant number, since it is smaller than the sum of its proper divisors (1750030520).

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

1203145240 is a wasteful number, since it uses less digits than its factorization.

1203145240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734443 (or 2734439 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1203145240 is about 34686.3840721399. The cubic root of 1203145240 is about 1063.5861803980.

Adding to 1203145240 its reverse (425413021), we get a palindrome (1628558261).

The spelling of 1203145240 in words is "one billion, two hundred three million, one hundred forty-five thousand, two hundred forty".