145787070 has 128 divisors (see below), whose sum is σ = 435456000. Its totient is φ = 30689280.

The previous prime is 145787051. The next prime is 145787077. The reversal of 145787070 is 70787541.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145787077) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71931 + ... + 73929.

It is an arithmetic number, because the mean of its divisors is an integer number (3402000).

Almost surely, 2^145787070 is an apocalyptic number.

145787070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145787070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217728000).

145787070 is an abundant number, since it is smaller than the sum of its proper divisors (289668930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145787070 is a wasteful number, since it uses less digits than its factorization.

145787070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050.

The product of its (nonzero) digits is 54880, while the sum is 39.

The square root of 145787070 is about 12074.2316525732. The cubic root of 145787070 is about 526.3076337561.

The spelling of 145787070 in words is "one hundred forty-five million, seven hundred eighty-seven thousand, seventy".