1202152540 has 24 divisors (see below), whose sum is σ = 2531414592. Its totient is φ = 479547840.

The previous prime is 1202152537. The next prime is 1202152543. The reversal of 1202152540 is 452512021.

It is an interprime number because it is at equal distance from previous prime (1202152537) and next prime (1202152543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202152543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74551 + ... + 89230.

It is an arithmetic number, because the mean of its divisors is an integer number (105475608).

Almost surely, 2^1202152540 is an apocalyptic number.

1202152540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202152540 is an abundant number, since it is smaller than the sum of its proper divisors (1329262052).

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

1202152540 is a wasteful number, since it uses less digits than its factorization.

1202152540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164157 (or 164155 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1202152540 is about 34672.0714697002. The cubic root of 1202152540 is about 1063.2935827184.

Adding to 1202152540 its reverse (452512021), we get a palindrome (1654664561).

The spelling of 1202152540 in words is "one billion, two hundred two million, one hundred fifty-two thousand, five hundred forty".