149001263781 has 8 divisors (see below), whose sum is σ = 198972593760. Its totient is φ = 99182054832.

The previous prime is 149001263729. The next prime is 149001263833. The reversal of 149001263781 is 187362100941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (149001263729) and next prime (149001263833).

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

It is not a de Polignac number, because 149001263781 - 2²³ = 148992875173 is a prime.

It is a super-2 number, since 2×149001263781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149001263981) 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, 38027971 + ... + 38031888.

It is an arithmetic number, because the mean of its divisors is an integer number (24871574220).

Almost surely, 2^149001263781 is an apocalyptic number.

It is an amenable number.

149001263781 is a deficient number, since it is larger than the sum of its proper divisors (49971329979).

149001263781 is an equidigital number, since it uses as much as digits as its factorization.

149001263781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76060515.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 149001263781 in words is "one hundred forty-nine billion, one million, two hundred sixty-three thousand, seven hundred eighty-one".