149833430881 has 2 divisors, whose sum is σ = 149833430882. Its totient is φ = 149833430880.

The previous prime is 149833430833. The next prime is 149833430947. The reversal of 149833430881 is 188034338941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129179142225 + 20654288656 = 359415^2 + 143716^2 .

It is a cyclic number.

It is not a de Polignac number, because 149833430881 - 2¹³ = 149833422689 is a prime.

It is a super-2 number, since 2×149833430881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149833430801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74916715440 + 74916715441.

It is an arithmetic number, because the mean of its divisors is an integer number (74916715441).

Almost surely, 2^149833430881 is an apocalyptic number.

It is an amenable number.

149833430881 is a deficient number, since it is larger than the sum of its proper divisors (1).

149833430881 is an equidigital number, since it uses as much as digits as its factorization.

149833430881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 149833430881 in words is "one hundred forty-nine billion, eight hundred thirty-three million, four hundred thirty thousand, eight hundred eighty-one".