135970294 has 4 divisors (see below), whose sum is σ = 203955444. Its totient is φ = 67985146.

The previous prime is 135970291. The next prime is 135970313. The reversal of 135970294 is 492079531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 492079531 = 401 ⋅1227131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135970291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33992572 + ... + 33992575.

It is an arithmetic number, because the mean of its divisors is an integer number (50988861).

Almost surely, 2^135970294 is an apocalyptic number.

135970294 is a deficient number, since it is larger than the sum of its proper divisors (67985150).

135970294 is an equidigital number, since it uses as much as digits as its factorization.

135970294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67985149.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 135970294 is about 11660.6300858916. The cubic root of 135970294 is about 514.2188730077.

The spelling of 135970294 in words is "one hundred thirty-five million, nine hundred seventy thousand, two hundred ninety-four".