126998 has 4 divisors (see below), whose sum is σ = 190500. Its totient is φ = 63498.

The previous prime is 126989. The next prime is 127031. The reversal of 126998 is 899621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 899621 = 661 ⋅1361.

It is a super-2 number, since 2×126998² = 32256984008, 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 as a sum of consecutive naturals, namely, 31748 + ... + 31751.

It is an arithmetic number, because the mean of its divisors is an integer number (47625).

2¹²⁶⁹⁹⁸ is an apocalyptic number.

126998 is a deficient number, since it is larger than the sum of its proper divisors (63502).

126998 is an equidigital number, since it uses as much as digits as its factorization.

126998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63501.

The product of its digits is 7776, while the sum is 35.

The square root of 126998 is about 356.3677875454. The cubic root of 126998 is about 50.2649930921.

The spelling of 126998 in words is "one hundred twenty-six thousand, nine hundred ninety-eight".