126157743 has 40 divisors (see below), whose sum is σ = 199650000. Its totient is φ = 79252992.

The previous prime is 126157741. The next prime is 126157751. The reversal of 126157743 is 347751621.

It is a happy number.

It is not a de Polignac number, because 126157743 - 2¹ = 126157741 is a prime.

It is a super-2 number, since 2×126157743² = 31831552237708098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126157698 and 126157707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126157741) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 100383 + ... + 101631.

It is an arithmetic number, because the mean of its divisors is an integer number (4991250).

Almost surely, 2^126157743 is an apocalyptic number.

126157743 is a deficient number, since it is larger than the sum of its proper divisors (73492257).

126157743 is a wasteful number, since it uses less digits than its factorization.

126157743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1324 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 126157743 is about 11231.9963942302. The cubic root of 126157743 is about 501.5389159493.

The spelling of 126157743 in words is "one hundred twenty-six million, one hundred fifty-seven thousand, seven hundred forty-three".