124749533601 has 135 divisors (see below), whose sum is σ = 232243779105. Its totient is φ = 64338729840.

The previous prime is 124749533567. The next prime is 124749533621. The reversal of 124749533601 is 106335947421.

The square root of 124749533601 is 353199.

It is a perfect power (a square), and thus also a powerful number.

124749533601 is a `hidden beast` number, since 1 + 2 + 4 + 7 + 4 + 9 + 5 + 33 + 601 = 666.

It is not a de Polignac number, because 124749533601 - 2¹¹ = 124749531553 is a prime.

It is a super-2 number, since 2×124749533601² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124749533621) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 897478590 + ... + 897478728.

Almost surely, 2^124749533601 is an apocalyptic number.

124749533601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

124749533601 is the 353199-th square number.

124749533601 is the 176600-th centered octagonal number.

It is an amenable number.

124749533601 is a deficient number, since it is larger than the sum of its proper divisors (107494245504).

124749533601 is an frugal number, since it uses more digits than its factorization.

124749533601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 124749533601 in words is "one hundred twenty-four billion, seven hundred forty-nine million, five hundred thirty-three thousand, six hundred one".