1203151640 has 16 divisors (see below), whose sum is σ = 2707091280. Its totient is φ = 481260640.

The previous prime is 1203151639. The next prime is 1203151679. The reversal of 1203151640 is 461513021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15039356 + ... + 15039435.

It is an arithmetic number, because the mean of its divisors is an integer number (169193205).

Almost surely, 2^1203151640 is an apocalyptic number.

1203151640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203151640 is an abundant number, since it is smaller than the sum of its proper divisors (1503939640).

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

1203151640 is a wasteful number, since it uses less digits than its factorization.

1203151640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30078802 (or 30078798 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1203151640 is about 34686.4763272374. The cubic root of 1203151640 is about 1063.5880662716.

Adding to 1203151640 its reverse (461513021), we get a palindrome (1664664661).

The spelling of 1203151640 in words is "one billion, two hundred three million, one hundred fifty-one thousand, six hundred forty".