1250211530 has 32 divisors (see below), whose sum is σ = 2268000000. Its totient is φ = 496184832.

The previous prime is 1250211527. The next prime is 1250211539. The reversal of 1250211530 is 351120521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1250211539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000346 + ... + 1001594.

It is an arithmetic number, because the mean of its divisors is an integer number (70875000).

Almost surely, 2^1250211530 is an apocalyptic number.

1250211530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250211530 is a deficient number, since it is larger than the sum of its proper divisors (1017788470).

1250211530 is a wasteful number, since it uses less digits than its factorization.

1250211530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1250211530 is about 35358.3304187288. The cubic root of 1250211530 is about 1077.2781052647.

The spelling of 1250211530 in words is "one billion, two hundred fifty million, two hundred eleven thousand, five hundred thirty".