542126739 has 48 divisors (see below), whose sum is σ = 922907520. Its totient is φ = 279901440.

The previous prime is 542126713. The next prime is 542126749. The reversal of 542126739 is 937621245.

It is not a de Polignac number, because 542126739 - 2⁵ = 542126707 is a prime.

It is a super-2 number, since 2×542126739² = 587802802277548242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542126697 and 542126706.

It is not an unprimeable number, because it can be changed into a prime (542126749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 288507 + ... + 290379.

It is an arithmetic number, because the mean of its divisors is an integer number (19227240).

Almost surely, 2^542126739 is an apocalyptic number.

542126739 is a deficient number, since it is larger than the sum of its proper divisors (380780781).

542126739 is a wasteful number, since it uses less digits than its factorization.

542126739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2073 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 542126739 is about 23283.6152476371. The cubic root of 542126739 is about 815.3929323355.

The spelling of 542126739 in words is "five hundred forty-two million, one hundred twenty-six thousand, seven hundred thirty-nine".