1061537990 has 16 divisors (see below), whose sum is σ = 1955205648. Its totient is φ = 414740256.

The previous prime is 1061537963. The next prime is 1061538019. The reversal of 1061537990 is 997351601.

It is a super-2 number, since 2×1061537990² = 2253725808426480200, which contains 22 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, 1233917 + ... + 1234776.

It is an arithmetic number, because the mean of its divisors is an integer number (122200353).

Almost surely, 2^1061537990 is an apocalyptic number.

1061537990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1061537990 is a deficient number, since it is larger than the sum of its proper divisors (893667658).

1061537990 is a wasteful number, since it uses less digits than its factorization.

1061537990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468743.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 1061537990 is about 32581.2521244964. The cubic root of 1061537990 is about 1020.1057144053.

The spelling of 1061537990 in words is "one billion, sixty-one million, five hundred thirty-seven thousand, nine hundred ninety".