146022815381 has 8 divisors (see below), whose sum is σ = 146185980120. Its totient is φ = 145859712768.

The previous prime is 146022815333. The next prime is 146022815437. The reversal of 146022815381 is 183518220641.

It can be written as a sum of positive squares in 4 ways, for example, as 48933864100 + 97088951281 = 221210^2 + 311591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146022815381 - 2²⁶ = 145955706517 is a prime.

It is a super-2 number, since 2×146022815381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146022115381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5900225 + ... + 5924921.

It is an arithmetic number, because the mean of its divisors is an integer number (18273247515).

Almost surely, 2^146022815381 is an apocalyptic number.

It is an amenable number.

146022815381 is a deficient number, since it is larger than the sum of its proper divisors (163164739).

146022815381 is a wasteful number, since it uses less digits than its factorization.

146022815381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31063.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 146022815381 in words is "one hundred forty-six billion, twenty-two million, eight hundred fifteen thousand, three hundred eighty-one".